GSM / GPRS Modems
GSM (Global System for Mobile communication) offers a natural and easy platform for wireless automation, much more flexible and easier solution than for example traditional radio modems. The GSM-modem can be used to link PLC’s, data loggers, security and surveillance systems or for data acquisition. With the ability to call pre-set numbers or send/receive SMS-messages the GSM-modem is ideal for alarm monitoring and remote diagnostics for unmanned stations. The Westermo GSM-modem can communicate with other GSM-modems, traditional analogue modem and ISDN-adapters.

GD-01 GSM Modem

• UL Approved
• GSM 850/1900 MHz
• Built in TCP/IP
• Speed CSD up to 14.4 kbit/s, GPRS up to 85.6 kbit/s
• SMS-message up to 160 characters

Wireless Ethernet
Industrial radio modems allow Ethernet and asynchronous RS-232 or RS-485 data signals to be transmitted up to 5 km without the need for wires. The Westermo radio modems are designed to very high standards to make them incredibly reliable. Modems are available for use in both the 869 Mhz and WiFi 2,4G Hz license free bands. Modems in the 900 Mhz band is availible for the US market. Their design allows them to be used in place of copper connections for serial data transfer, on a point to point or multidrop basis, ideal when cabling will be difficult.

RM-90 

• Wireless Ethernet Access point and Client
• 10/100 BaseT RJ45, IEEE 802.3 compliant.
• On-board I/O for link status or external status transfer
• Industrial Strength 900 MHz
• RS-232 V.24 DCE 1.2 to 115.2 Kb/s

RM-240

• 802.11b WiFi compliant wireless data up to 11 Mb/s
• WLAN Access point and Client
• 10/100 BaseT RJ45, IEEE 802.3 compliant.
• RS-232 V.24 DCE 1.2 to 115.2 Kb/s
• Access Point, Client/Station and Repeater